Q. For the same rise in temperature of one mole of gas at constant volume, heat required for a non linear triatomic gas is $K$ times that required for monatomic gas. The value of $K$ is
A) 1
B) 0.5
C) 2
D) 2.5
Explanation
(c) For a non-linear triatomic gas, $C_{v} = 3\ R$
And for a monoatomic gas, $C_{v}^{\ }' = \frac{3}{2}R$
$\therefore\ \ \frac{Q}{Q^{'}} = \frac{C_{v}}{C_{v}^{\ }'} = K = \frac{3R}{\frac{3}{2}R} = 2$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.